Simplify the Expression $10 \sqrt [ 4 ] { x ^ { 7 } } - 4 x \sqrt [ 4 ] { x ^ { 3 } }$

Multiple Choice

Simplify the expression. Assume all variables represent positive real numbers.
- $10 \sqrt [ 4 ] { x ^ { 7 } } - 4 x \sqrt [ 4 ] { x ^ { 3 } }$

A) $10 \sqrt [ 4 ] { x ^ { 7 } } - 4 x \sqrt [ 4 ] { x ^ { 3 } }$
B) $6x \sqrt [ 4 ] { x ^ { 7 } }$
C) $14 \sqrt [ 4 ] { \mathrm { x } ^ { 3 } }$
D) $6 x \sqrt [ 4 ] { \mathrm { x } ^ { 3 } }$